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Nuclear Power Engineering

Nuclear Power Engineering
Unit of radioactivity is

Angstrom
Curie
Barn
Fermi

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Nuclear Power Engineering
The main ore of uranium is

Pitchblende
Monazite sand
Cassiterite
Chalcopyrite

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Nuclear Power Engineering
Enriched uranium means that, it contains

No impurities
Only fertile material
More than 0.71% of U-235
Only fissile material

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Nuclear Power Engineering
A radioactive isotope undergoes decay with respect to time following __________ law.

Linear
Logarithmic
Exponential
Inverse square

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Nuclear Power Engineering
The half life period of a radiactive element is 100 days. After 400 days, one gm of the element will be reduced to __________ gm.

43838
43834
43846
43832

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Nuclear Power Engineering
Thermal shield is used in high powered nuclear reactors to

Absorb the fast neutrons
Protect the fuel element from coming in contact with the coolant
Slow down the secondary neutrons
Protect the walls of the reactor from radiation damage

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